repeated use短语⁴⁵⁹²⁷ 基本例句 叠用 One-time use of cocaine increases levels of G9a. But repeated use works the other way, suppressing the protein and reducing its overall control of gene activation. 吸食一次可卡因会增加 G9a的浓度，然而上瘾之后反而会使其浓度降低，抑制蛋白质的活动，削弱其对基因开关的全面控制。 yeeyan